Question

A square piece of field has each side equal to 150 m. if 3 layers of barbed wire has to be used to fence it, what is the length of the wire required? also find the total cost of the wire if a metre of wire costs 2 rupees

Answer 1

side=150

perimeter=150×4=600

3 layers= 600×3=1800

Cost for 1800m at Rs.2per m=1800×2=3600

Ans=Rs.3600